Substance Information

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REACH Registration data can be found in the new ECHA CHEM database. The old ‘Registered substance factsheets’ will be available on this web site during the transition period but have not been updated since 19 May 2023. More

 

Chlorine

EC / List no.: 231-959-5

CAS no.: 7782-50-5

Mol. formula: Cl2

formula
GHS03: Oxidising GHS04: Gas under Pressure GHS06: Acute Toxicity GHS09: Hazardous to the Environment

Danger! According to the harmonised classification and labelling (ATP01corr) approved by the European Union, this substance is toxic if inhaled, is very toxic to aquatic life, may cause or intensify fire (oxidiser), causes serious eye irritation, causes skin irritation and may cause respiratory irritation.

Additionally, the classification provided by companies to ECHA in REACH registrations identifies that this substance is fatal if inhaled, is very toxic to aquatic life with long lasting effects and contains gas under pressure and may explode if heated.

This substance is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 000 tonnes per annum.

This substance is used in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Biocidal Uses

This substance is approved for use as a biocide in the EEA and/or Switzerland, for: disinfection, drinking water.

This substance is being reviewed for use as a biocide in the EEA and/or Switzerland, for: preservation for liquid systems.

This substance is used in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Consumer Uses

ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which this substance is most likely to be released to the environment.

Article service life

Other release to the environment of this substance is likely to occur from: outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials).
ECHA has no public registered data indicating whether or into which articles the substance might have been processed.

Widespread uses by professional workers

This substance is used in the following products: biocides (e.g. disinfectants, pest control products) and washing & cleaning products.
This substance is used for the manufacture of: rubber products.
Other release to the environment of this substance is likely to occur from: indoor use as processing aid, outdoor use as processing aid and indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters).

Formulation or re-packing

This substance is used in the following products: laboratory chemicals and semiconductors.
This substance has an industrial use resulting in manufacture of another substance (use of intermediates).
Release to the environment of this substance can occur from industrial use: formulation of mixtures and manufacturing of the substance.

Uses at industrial sites

This substance is used in the following products: semiconductors, metal surface treatment products, laboratory chemicals, water treatment chemicals and paper chemicals and dyes.
This substance has an industrial use resulting in manufacture of another substance (use of intermediates).
This substance is used in the following areas: scientific research and development.
This substance is used for the manufacture of: chemicals, electrical, electronic and optical equipment, pulp, paper and paper products, metals, textile, leather or fur and mineral products (e.g. plasters, cement).
Release to the environment of this substance can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid, in processing aids at industrial sites and manufacturing of the substance.

Manufacture

Release to the environment of this substance can occur from industrial use: manufacturing of the substance, formulation of mixtures, in processing aids at industrial sites, as processing aid and as an intermediate step in further manufacturing of another substance (use of intermediates).

The InfoCard summarises the non-confidential data on substances as held in the databases of the European Chemicals Agency (ECHA), including data provided by third parties. The InfoCard is automatically generated. Information requirements under different legislative frameworks may therefore not be up–to–date or complete. Substance manufacturers and importers are responsible for consulting official publications. This InfoCard is covered by the ECHA Legal Disclaimer.

ECHA logo about INFOCARD - Last updated: 07/02/2024